QmlJSEditor: Modernize

modernize-*

Change-Id: I4dceb82c3904069a0d9848b2af61122d9282cb36
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/plugins/qmljseditor/qmljseditordocument_p.h

@@ -50,7 +50,7 @@ class QmlJSEditorDocumentPrivate : public QObject
 
 public:
     QmlJSEditorDocumentPrivate(QmlJSEditorDocument *parent);
-    ~QmlJSEditorDocumentPrivate();
+    ~QmlJSEditorDocumentPrivate() override;
 
     void invalidateFormatterCache();
     void reparseDocument();